package Lesson;

public class Test9 {
    public static void main(String[] args) {
        int[] arr = {1,2,3};

        String st = test(arr);
        System.out.println(st);
    }

    public static String test(int[] arr){
        StringBuilder sb = new StringBuilder("[");
        for (int i = 0; i < arr.length; i++) {
            if(i == arr.length -1){
                //sb.append(arr[i]+"]");
                sb.append(arr[i]).append("]");
            } else{
                sb.append(arr[i]).append(",");
            }

        }
        return sb.toString();
    }
}
